/*
 * FindBugs - Find Bugs in Java programs
 * Copyright (C) 2006, University of Maryland
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package edu.umd.cs.findbugs;

import edu.umd.cs.findbugs.ba.ClassContext;
import edu.umd.cs.findbugs.classfile.CheckedAnalysisException;
import edu.umd.cs.findbugs.classfile.ClassDescriptor;
import edu.umd.cs.findbugs.classfile.Global;
import edu.umd.cs.findbugs.classfile.IAnalysisCache;
import edu.umd.cs.findbugs.log.Profiler;

/**
 * An adapter allowing classes implementing the Detector interface
 * to support the new Detector2 interface.
 * 
 * @author David Hovemeyer
 */
public class DetectorToDetector2Adapter implements Detector2 {
	private Detector detector;

	/**
	 * Constructor.
	 * 
	 * @param detector the Detector we want to adapt
	 */
	public DetectorToDetector2Adapter(Detector detector) {
		this.detector = detector;
	}

	/* (non-Javadoc)
	 * @see edu.umd.cs.findbugs.Detector2#finishPass()
	 */
	public void finishPass() {
		detector.report();
	}

	/* (non-Javadoc)
	 * @see edu.umd.cs.findbugs.Detector2#visitClass(edu.umd.cs.findbugs.classfile.ClassDescriptor)
	 */
	public void visitClass(ClassDescriptor classDescriptor)
			throws CheckedAnalysisException {
		
		// Just get the ClassContext from the analysis cache
		// and apply the detector to it.

		IAnalysisCache analysisCache = Global.getAnalysisCache();
		ClassContext classContext = analysisCache.getClassAnalysis(ClassContext.class, classDescriptor);
		Profiler profiler = analysisCache.getProfiler();		
		profiler.start(detector.getClass());
		try {
		detector.visitClassContext(classContext);
		} finally {
			profiler.end(detector.getClass());
		}
	}

	/* (non-Javadoc)
	 * @see edu.umd.cs.findbugs.Detector2#getDetectorClassName()
	 */
	public String getDetectorClassName() {
		return detector.getClass().getName();
	}
}
